path: root/include
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authorHans de Goede <>2014-12-24 19:34:38 +0100
committerHans de Goede <>2015-01-14 14:56:38 +0100
commit6c727e09a022fcc0701eef58c4a5aedae5d9a6ac (patch)
treeb03dcd3a57abfd69fa7747c24ac91ff706cf7d33 /include
parentd27f7d14eaa1299b93c1e5efb691ddf0884885fa (diff)
sunxi: gpio: Add support for gpio pins on the AXP209 pmic
Some boards use GPIO-s on the pmic, one example of this is the A13-OLinuXino board, which uses gpio0 of the axp209 for the lcd-power signal. This commit adds support for gpio pins on the AXP209 pmic, the sunxi_gpio.c changes are universal, adding gpio support for the other AXP pmics (when necessary) should be a matter of adding the necessary axp_gpio_foo functions to their resp. drivers, and add "#define AXP_GPIO" to their header file. Note this commit only adds support for the non device-model version of the gpio code, patches for adding support to the device-model version are very welcome. The string representation for these gpio-s is AXP0-#, the 0 in the AXP0 prefix is there in case we need to support gpio-s on more then 1 pmic in the future. At least A80 boards have 2 pmics, and we may end up needing to support gpio-s on both. Signed-off-by: Hans de Goede <> Acked-by: Ian Campbell <>
Diffstat (limited to 'include')
1 files changed, 7 insertions, 0 deletions
diff --git a/include/axp209.h b/include/axp209.h
index 21efce64bb..043624953a 100644
--- a/include/axp209.h
+++ b/include/axp209.h
@@ -4,6 +4,8 @@
* SPDX-License-Identifier: GPL-2.0+
+#define AXP_GPIO
extern int axp209_set_dcdc2(int mvolt);
extern int axp209_set_dcdc3(int mvolt);
extern int axp209_set_ldo2(int mvolt);
@@ -12,3 +14,8 @@ extern int axp209_set_ldo4(int mvolt);
extern int axp209_init(void);
extern int axp209_poweron_by_dc(void);
extern int axp209_power_button(void);
+extern int axp_gpio_direction_input(unsigned int pin);
+extern int axp_gpio_direction_output(unsigned int pin, unsigned int val);
+extern int axp_gpio_get_value(unsigned int pin);
+extern int axp_gpio_set_value(unsigned int pin, unsigned int val);
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